[Ureterocele: diagnosis and treatment at birth]

Antenatal ultrasound diagnosis of ureterocele remains difficult. Two cases are presented. The presumption of the diagnosis was realized at 25 weeks of amenorrhea in one case; in the other case, the diagnosis was sure at 38 weeks. A vesical exploration was performed after visualization of a dilatation of the upper pole of the kidney associated with an ureteral distension. An ectopic ureterocele was display in one case and an orthotopic ureterocele in the other case. These findings were confirmed during the radiologic examination after the birth. An hemi-nephroureterectomy was realized for an ectopic ureterocele in the first case, and an enucleation for an orthotopic bilateral ureterocele in the second case. doses of 1 and 100 micrograms+100 g BW, T3 was without effect of inhibited 45Ca uptake. In ventricles and atria, the stimulatory effect of T3 on 45Ca uptake was very rapid [within 2 min, at which time it was at or near maximum (50-90% above control] and then declined gradually and was not seen after 10-20 min. Of the several calcium blockers employees, verapamil (organic) and cadmium (inorganic) were found to be the most effective. Verapamil and cadmium produced a rapid, transient, and dose-related inhibition of 45Ca uptake in the tissues examined (except fat tissue where, under the experimental conditions employed, 45Ca uptake was undetected). Verapamil, given iv (200 micrograms/100 g BW) or ip (1 mg+100 g BW), reduced tissue 45Ca uptake by 50-90% within 2 or 10 min, respectively, and then its inhibitory effect diminished rapidly and was not seen after 20-30 min.(ABSTRACT TRUNCATED AT 250 WORDS)